湖南进口分析仪采购

Sample Preparation

Typically, titanium and zirconium samples are chemically etched to remove surface contamination when oxygen and nitrogen are determined. However, etching can introduce hydrogen into the sample.

ASTM method E 1409 "Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert

Gas Fusion Technique", as updated in 1996, permits either etching or abrading (filing) of the test specimen.

ASTM E 1447 "Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal

Conductivity/Infrared Detection Method" permits surface preparation by abrading (if necessary to remove

contamination). Differences in sample preparation present somewhat of a dilemma regarding simultaneous

determination of O, N, and H in titanium. However, abrading samples with a file to remove surface

contamination will yield accurate O, N, and H results. The ONH836 utilizes a high-power electrode furnace to quickly and efficiently release the target gases from within the sample, which allows for a very rapid simultaneous determination of oxygen, nitrogen, and hydrogen.

力可***仪器采用触摸屏技术和在线软件平台，增强了仪器的可操作性、降低了分析成本、节省实验室桌面空间。湖南进口分析仪采购

氧氮氢分析仪的原理：分析样品在惰性气流存在下于石墨坩埚中加热熔融，其中脉冲炉温度可自由设定，并通过一个非接触式的光学温度传感器进行实时监控，用于实现样品的完全分解，反应所生成的CO H2和N2被带入到具有高稳定性和灵敏度的检测系统进行检测。对于CO的检测采用的是非色散性红外检测器，对于N2和H2的检测则采用热导检测器。

氧氮氢分析仪的特点：快速准确分析，自动化操作；精密气体校准；CO红外检测器，高分辨率和重现性的N、H热导池检测器；同一台仪器实现熔融提取和热提取；热提取分析时间可调；可自由选择温度*高达2500 °C；光学温度计温度测定和控制；所有检测器自动调零/自动水平控制（ALC）；数据评估的自动优化选择范围；炉自动清洁和坩埚自动进样（可选）；外设电脑进行操作和控制；样品信息保存； 所有样品数据可追踪查询；通过FTP或本地局域网进行数据传输； ON，H分析轻松切换。

广东专业元素分析仪供应商装有自动旁路阀的可快速拆装氧水捕集装置。

Method Selection

Two methods are described in this application note; either method can be used to analyze iron, steel, nickel-, and cobalt-base alloys. The Precision Method is recommended for general use and will provide the best precision and accuracy throughout the typical O, N, and H concentrations found in this group of metals; approximate cycle time is 3.5 minutes. The Fast Track method can be used where speed of analysis is a critical component; for example, when molten metal is being sampled and results are required in the shortest possible time. This method will produce suitable results for most samples; approximate cycle time is 2.25 minutes. As noted above, sampling and sample preparation are key elements to accurate O, N, and Hdetermination as well. It is up to the user to determine which method best meets their needs.

Procedure - Solid Samples

Instrument calibration/drift correction.

Add approximately 0.05 g of *** Graphite Powder to a *** Graphite Crucible.

Firmly place the crucible on the lower electrode tip or appropriate autoloader position.

Press the Analyze button on the instrument screen, the lower electrode will close and the analysis sequence will start and end automatically.

Repeat steps 3b through 3j a minimum of three times for each calibration/drift standard used.

Calibrate/drift following the procedure outlined in the operator's instruction manual.

Cornerstone氧氮氢分析软件分成4个主要部分：分析、诊断、设定、仪器，界面可快速导航和组织。

美国LECO力可氧氮氢分析仪ONH836 氧氮氢联测仪系列软件部分

1、用户友好界面的Cornerstone软件

力可**的Cornerstone氧氮氢分析软件采用触摸屏界面使用户可完整的达到分析控制、方法设定、在线诊断、数据报告。Cornerstone氧氮氢分析软件允许用户在单一分析界面中完成日常的所有工作，快速而且简单易用。力可创新的批次和重复样品数据分组功能极大简化了样品结果输出和结果标准偏差的自动计算。减少了繁琐的额外数据处理。

2、软件特点和优势

Cornerstone氧氮氢分析软件分成四个主要部分：分析、诊断、设定、仪器，界面可快速导航和组织。工具条、滑动条和下拉式菜单简化了校正和数据处理的参数设定。分析软件同时包括实时的环境参数的检测，提供完整的系统图表模拟。高级诊断程序包括全数字化的在线操作手册、维护模拟演示、图片说明等提供快速指导。Cornerstone氧氮氢分析软件同时支持***的数据文档格式和可变的报告格式。

Cornerstone氧氮氢分析软件同时支持***的数据文档格式和可变的报告格式。上海美国LECO氧氮氢分析仪采购

简化日常分析所需的炉头进样部分机械维护工作。湖南进口分析仪采购

Procedure – Powder/Chip Samples

Instrument calibration/drift correction.

Add approximately 0.05 g of *** Graphite Powder to a***Graphite Crucible.

Firmly place the crucible on the lower electrode tip or appropriate autoloader position.

Press the Analyze button on the instrument screen,the lower electrode will close and the analysis sequence will start and end automatically.

Repeat steps 3b through 3i a minimum of three times for each calibration/drift standard used.

湖南进口分析仪采购

上海禹重实业有限公司致力于仪器仪表，是一家服务型的公司。公司业务分为光谱仪，色谱仪，质谱仪，样品前处理等，目前不断进行创新和服务改进，为客户提供良好的产品和服务。公司秉持诚信为本的经营理念，在仪器仪表深耕多年，以技术为先导，以自主产品为重点，发挥人才优势，打造仪器仪表良好品牌。禹重科技立足于全国市场，依托强大的研发实力，融合前沿的技术理念，飞快响应客户的变化需求。